How to delete a section of an heterogeneus part in Orcad 16.6.

First of all I would like to do a brieve introducion:

1.  I have just imported a project from older Cadence version to 16.6 version. I have the layout and the schematics and now I'm synchonising them with netlist generation.
2.  I have translated the old layout library files to the new format .dra. This update has been done successfully.
3.  But the last error that console has launched to me when generating netlist is this: 

"All physical pins are common in section 4 of physical part 'AD5262_1_TSSOP16_R25W_R22L_R025'. Each section must have at least one non-common pin.
Open the part in Part Developer and ensure that you have at least one non-common pin for each section of a physical part are common in section 4 of physical part 'AD5262_1_TSSOP16_R25W_R22L_R025'. Each section must have at least one non-common pin.
Open the part in Part Developer and ensure that you have at least one non-common pin for each section of a physical part"

The thing is that the symbol of this device was created as a multipart symbol. When I edit the part it appears as 4 sections symbol, so A, B, C and D parts. But when I open D part is an empty white sheet, it has no elements, neither pins, etc.. is an empty element that remains unusefull. It has been a traslation mistake. This D part is not used at schematics. So I tried to delete D part. How? 

1. First I tried to do it following the console error msg about "part developer". But "Part Developer" is launched from library explorr manager an extern tool that only open .cpm files. But my project has not any of this kind of file. So I discard this solution. 
2. Second I tried to do it by editing the part by clicking over library project element/edit part/options/package properties and change to 3 parts. They launch the msg that I can delete the part y selecting the part in package view and clicking "delete". But I don' t know where is this "package view". 

My questions:

1.- How can I access the "package view" tool? where can I find the package view? I was browsing documents in Cadence help tool but I don't fnd clear information about how to open it. Most document about this and about Part developer are refered to 16.3 version and they have not the same interface neither menus. 

2.- If you know an other easy way to delete a section of an heterogeneus part I will be thankfull for being shared with me.